template.xaml

        <ControlTemplate x:Key="PhoneSimpleRepeatButton" TargetType="RepeatButton">
        	<Rectangle Fill="Transparent"/>
        </ControlTemplate>
        <ControlTemplate x:Key="PhoneSimpleThumb" TargetType="Thumb">
        	<Rectangle Fill="Transparent"/>
        </ControlTemplate>
        <ControlTemplate x:Key="VerticalThumb" TargetType="Thumb">
            <Rectangle Fill="{StaticResource PhoneForegroundBrush}"/>
        </ControlTemplate>
        <Style x:Key="SynthSlider" TargetType="Slider">
            <Setter Property="Height" Value="500"/>
        	<Setter Property="Orientation" Value="Vertical"/>
        	<Setter Property="BorderThickness" Value="0"/>
        	<Setter Property="BorderBrush" Value="Transparent"/>
        	<Setter Property="Maximum" Value="10"/>
        	<Setter Property="Minimum" Value="0"/>
        	<Setter Property="Value" Value="0"/>
        	<Setter Property="Background" Value="{StaticResource PhoneContrastBackgroundBrush}"/>
        	<Setter Property="Foreground" Value="{StaticResource PhoneAccentBrush}"/>
        	<Setter Property="Template">
        		<Setter.Value>
        			<ControlTemplate TargetType="Slider">
        				<Grid Background="Transparent">
        					<VisualStateManager.VisualStateGroups>
        						<VisualStateGroup x:Name="CommonStates">
        							<VisualState x:Name="Normal"/>
        							<VisualState x:Name="MouseOver"/>
        							<VisualState x:Name="Disabled">
        								<Storyboard>
        									<DoubleAnimation Duration="0" To="0.1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="HorizontalTrack"/>
        									<DoubleAnimation Duration="0" To="0.1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="VerticalTrack"/>
        									<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="HorizontalFill">
        										<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>
        									</ObjectAnimationUsingKeyFrames>
        									<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalFill">
        										<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>
        									</ObjectAnimationUsingKeyFrames>
        								</Storyboard>
        							</VisualState>
        						</VisualStateGroup>
        					</VisualStateManager.VisualStateGroups>
        					<Grid x:Name="HorizontalTemplate" Margin="{StaticResource PhoneHorizontalMargin}">
        						<Grid.ColumnDefinitions>
        							<ColumnDefinition Width="Auto"/>
        							<ColumnDefinition Width="0"/>
        							<ColumnDefinition Width="*"/>
        						</Grid.ColumnDefinitions>
        						<Rectangle x:Name="HorizontalTrack" Grid.ColumnSpan="3" Fill="{TemplateBinding Background}" Height="12" IsHitTestVisible="False" Margin="0,22,0,50" Opacity="0.2"/>
        						<Rectangle x:Name="HorizontalFill" Grid.Column="0" Fill="{TemplateBinding Foreground}" Height="12" IsHitTestVisible="False" Margin="0,22,0,50"/>
        						<RepeatButton x:Name="HorizontalTrackLargeChangeDecreaseRepeatButton" Grid.Column="0" IsTabStop="False" Template="{StaticResource PhoneSimpleRepeatButton}"/>
        						<RepeatButton x:Name="HorizontalTrackLargeChangeIncreaseRepeatButton" Grid.Column="2" IsTabStop="False" Template="{StaticResource PhoneSimpleRepeatButton}"/>
        						<Thumb x:Name="HorizontalThumb" Grid.Column="1" Margin="-1,0,0,0" RenderTransformOrigin="0.5,0.5" Template="{StaticResource PhoneSimpleThumb}" Width="1">
        							<Thumb.RenderTransform>
        								<ScaleTransform ScaleY="1" ScaleX="32"/>
        							</Thumb.RenderTransform>
        						</Thumb>
        					</Grid>
        					<Grid x:Name="VerticalTemplate" Margin="{StaticResource PhoneVerticalMargin}">
        						<Grid.RowDefinitions>
        							<RowDefinition Height="*"/>
        							<RowDefinition Height="0"/>
        							<RowDefinition Height="Auto"/>
        						</Grid.RowDefinitions>
        						<Rectangle x:Name="VerticalTrack" Fill="{TemplateBinding Background}" IsHitTestVisible="False" Margin="12,0" Opacity="0.2" Grid.RowSpan="3" Width="12"/>
        						<Rectangle x:Name="VerticalFill" Fill="{TemplateBinding Foreground}" IsHitTestVisible="False" Margin="12,0" Grid.Row="2" Width="12"/>
        						<RepeatButton x:Name="VerticalTrackLargeChangeDecreaseRepeatButton" IsTabStop="False" Grid.Row="0" Template="{StaticResource PhoneSimpleRepeatButton}"/>
        						<RepeatButton x:Name="VerticalTrackLargeChangeIncreaseRepeatButton" IsTabStop="False" Grid.Row="2" Template="{StaticResource PhoneSimpleRepeatButton}"/>
        						<Thumb x:Name="VerticalThumb" Height="1" Margin="0,-1,0,0" Grid.Row="1" RenderTransformOrigin="0.5,0.5" Template="{StaticResource VerticalThumb}">
        							<Thumb.RenderTransform>
        								<ScaleTransform ScaleY="32" ScaleX="1"/>
        							</Thumb.RenderTransform>
        						</Thumb>
        					</Grid>
        				</Grid>
        			</ControlTemplate>
        		</Setter.Value>
        	</Setter>
        </Style>